Oiling device for flat-piston motors



March 30 1926. 1,578,433

C. C. HANSEN OILING DEVICE FOR FLAT-PISTON MOTORS Filed Feb. 25, 1924 2 Sheets-Sheet 1 A IN VEN TOR. Charlas -'Jmaem l March 30 1926.

. 1,578,433 c. c. HANSEN l 01mm DEVICE Foa FLAT' PIsToN MoToRs Filed Feb. 23 1924 2 sheets-sheet 2 BY f Hfs ATTO EY.

A tain IQiling vDevice for Flat-Piston]lVlotors,v`

Patented Mar. 30, 1.926;v

.. cHARLE'ScfHNsEmofns'roiv, iaivNsYLvAivIng 'AssrGNoR 'ro rivennsonL-,RAND- oILI'ire nnvron ron rLATf-rrs'roN MoTo'Rs,

' .Appiicationnlea February 23,1924. .seria1.'No. ce4r,'51 3.

To' @ZZ `wl-1.0m t may concern: Y f i v Be it lknown thatl, CHARLES C. HA1ISEN,. a citizen of the United FStates, 'and a resident of'-'-'East`on', county; of Northampton, .and

Statefofj Pennsylvania, have 'invented la cer` of which theffollo'wing'is a specicationaccompanied by drawings. f I y This inventionrelates to'motors of the flat piston type, but, more 'particularly to devices for supplying vlubricant thereto." if e f1 `As it is well known,gmotors"of 'the flatjor square vpiston type are'hard tomaintai'n tight, beca'use'oftheflarge bearing area of between' the pistontgand thefcylinderwall; Th'eseconditions create excessive vwear Vand for this reason, lubricant should beapplied to the'bea-ring surfaces in sui'iicie'nt quanti'- ties to minimize the'weari-ngwandto prevent vexcessive leakage.

flt is accordingly an object voftheinvention tosupp'ly oil toan' enginefof thistype inea manner to insure eicientoiling and also so 4as to insure Vthat'jthe oil will reach ,all

bearing surfacesV equally andfthoroughlyL Inythe practice .of this invention, the,V oilfis supplied-to the engine the forni'y of vapor lcarried/along bythe motivefluid by yadevice f which .automatically regulates theamount of oil sov supplied yand eliminates any's'urplus or admission Aoffoil in the form of ldrops "or liquidi In thismanner 'the oiliscarr'ied by the motivefluid evenly. 5

ther obj ects'` of the'inventionA will become apparent y'from` the following description taken'in conjunction with 3the vdrawings, "40 I y Y' showing a form which the inventionmayassuine in practice and Yinwhichf y i 'l Figure lis an endelevaltion: of the'invention, the throttle valve chest' of the oiling deviceheing'shown in section to more clearly illustrate the operation ofthelatter..

lFigure afvertical longitudinal cross sectiontaken along the linej l22offFigure lglooking kin the direct'ioiiy vof the-arrows, showing the in'air'ibearingareas to be lubri- Figure 3'i`s` .a 'longitudinal'section through show the manner in which'theV oil or"`1cubrir'cantiis lmixed with theQmOtiVeiud. v

Figure 4 isa cross Section'. faken. through dercover and valve ches`t.

iinto' the 'bearing surfaces:

which itf is 1 constructed..

Figure-5 isa side'view ofthe cylinder with the .front cylinder cover.l removed, l and .Figure'G-is a side view of the front cylin-V i j vReferring'. to the drawings, :theel engine shownis of the lflat or square piston type,

and comprises a cylinder frame integral with the fotfor base B 1113.011 Which-theenfl` i gine is mounted and has two heads, the head O formingra. support for the crankshaft D,

v there being bearings E provided y therefor the. piston exposed"to''unbalanced pressure* and the "small amou'nt of clearance' allowed andanother'bearing not shown and the hejad F formingy theA cover. 'The frame piston Gr is adapted toslide between .the heads .Gand F andthe frame A. 1 The framepiston G` is actuated by mot-ive fluid introduced alternately at the ends of the cylinder formed by the headsC andF and frame A, asshown 1n Figure 2.. An inner piston H is -mountedv at the. top and bottom of the cylinder.. rl`he two pistons G and-H cooperate ina well knowny manner to resolve the force of motive fluid actuating..thereagainst intoVV avcircular motion at 'thevcrank pin Jandj drive shaft -D fThe; arrangement of ports and-passage i for distributing' thefmotive fluid tothevarius parts" of the cylinderI may be, of .any of j-thosewellfknown inthe artrand as this' invention does not reside 'therein a detailed description thereof is omitted. f l

'The throttle v grally with the cylinder headF-and is `provided with a lcylindrical boreqL andvsuitl'able supply andl exhaustk ports. In the posi"- tion of the spool valve O shownin the draw-- ing, the port P acts as a supplypassage to p'ortR .acts as an exhaust port through which motive fluid is educted to apassage S vto porti?, is.infcommunicationwith the exhaust ,1'05

passage S land the -portR formerly usedas an exhaust port is placedinf communication "withthe4 supply of vmotive` 'fluid through thev passage andthen-'serves vas an admission Y"po'rtf-"for-gy the engine- VIntegral kwith Athe throttleVv valve chest l-"thereis formed 'an'.

'9c .vaivefehest K is 'formed inte;

@the `cylinder and.' motive iiuid enters the f valve chest4 throughV thefv passage' Q IThe .f

piston H to exhaust' motive fluid from the cylinder. f Itis understood that if itv is desired that the crank shaft D be rotatedinl one direction, the central port?) is used as airad#` mission port and the ports 4 act as exhaust ports and that when it vis desiredthatthe crank shaft D rotate in the opposite direction, the ports 4 then are used as admission ports and the Central port then acts as an exhaust port. The throttle Valve O is constructed to pro duce the desired change.` Thus, With the throttle valve in the position shown in Figure 1l vthe ports 4 actas admission ports; and with the throttle valve Oat the opposite end of its travel the central port 3 acts as the admission port. Y

Iii the operation of the device,,with the throttle Valve O in position shown in Figure 'y pressure fluid entering the throttle valve chest K through the passage Qwill pass to the cylinder through the port P. DuringV the passage of the pressure fluid through the channels described, afport-ion of the pressureV r lluid will pulsate into the oiling chamber (l and become saturated With oil. Theoil thus carried from the oiling'chamber cl Will intermingle vWith' the Vpressure luidi'passing through the `Valve chest I( and Will passv ih therewith into the cylinder. In this manner,

lubricant in suiiicient quantities is at all times supplied to the pistons during the operation of the machine. Upon reversal of the throttle valve O, pressure fluid entering the valve chest K will enter the cylinder through the port R for reversing the direction of the engine. With the engine running in this direction pressure fluid will be veitv hausted directly from the cylinder through about said *rod for maintaining S.V VIt rWill be seen` thaty in this position of the throttle valve O, Athe oiling chamber d Will still remain in communicationv with the Valve chestand oil for lubricating-:the engine Will be supplied to the pressure fluid in they manner described.

I claim:

l. In a reciprocating fluid aeuated motor, -a cylinder head,a valvev chest on said cylin` der head, an'oil reservoir formed integrally with said cylinder head, an oiling chamber Within said reservoir communicating with av port in said Valve chest, .-a pair. ofl carj f tridges closing the ends of vsaid oilingV chamf ber adapted tobe impregnated by oil-.from the reservoir and to deliver such oilto the motive fluid pulsating vinto the said oiling chamber from said Valve chest7 a rod extend-v ing through said cartridges y' and springs said cartridges in position.

2. .In a reciprocating vfluid actuated motor, a cylinder head, a valve chest oii said cylin der head, an oilr reservoir in said cylinder head adjacent said valve chest and integraly therewith, a supply port in said' valve chest associated with said reservoir. and al pair of'absorbent lcartridges interposed between 'v said reservoir and said supply port, each adapted to'supply oil by pulsations of said motive iluid in the supply port, said absorb# ent cartridges being positioned With respect to each other and said reservoir, so thatv at least one of the 'said cartridges is submerged in all `operative positions of said motor;

In testimony Vwhereof I have signed this,Y

specification. Y l CHARLES @HANSEN4 

